| 2948366 | Metal door structure | |||
| 2893070 | Adjustable weather-stripped door jamb | |||
| 2867856 | Panel construction and assembly | |||
| 2718287 | Fire-proof building construction unit | |||
| 2696279 | Steel door construction | |||
| 2665781 | Metallic door construction | |||
| 2664182 | Sheet metal door construction | |||
| 2664181 | Hollow metal door construction | |||
| 2579157 | Panel construction | |||
| 2522097 | Joint between resilient sheet material parts | |||
| 2060608 | Door construction | |||
| 1848715 | N/A | |||
| 1728964 | Joint connection for sheet-metal units |